William hancock



, e e Q I ff:

inten tetes @anni ffttr.

IMPROVEMENT IN REVERSIBLE .BUT EIN @he dgehnle ttfemh te in these tters @met 2mb' making grat uf tige same.

TO ALL WHOM IT MAY CONCERN:

Beit known that I, WILLIAM HANCOCK, of Saco, county of York, State of Maine, have invented a Reversible Loose-Joint But Hinge; and I do herebydeclare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the lettersY of reference marked thereon.

,The nature of my invention consists in providing within the hinge itself the requisite parts, that it may become at pleasure either a. right-hand lor a lei`t-hand hinge, thus vdispensing withthe trade distinctin` of a right and left-hand hinge; my'hinge supplying both right and left hand, and substituting all other loose-joint but hinges. n

To enable others to make and use my invention, I will proceed to describe its construction and operation.

Hinges on my plan or invention may be made of cast or wrought metal without involving any/difference of principle from those now manufactured, except in my hinge the. pin or pintle is not aflxture, as in that of others. For cast hinges my patterns are made like those now used, with the addition of an extra member or cylinder, C, in drawing, Figure 3, directly opposite the enlarged or cylindrical portion of the pattern, which serves as a base for the pintle and centre of motion of action, and diifering from others in having two cylinders. or centres` of motion -in lieu of one in others. To make my hinge of sheet metal, the vmetal requires to be cut as much wider as will suffice tobe turned up to form the second cylinder for a centre of action and support. In allother respects theA hinge does not differ materially from others in their manufacture. In hinges of the first class manufactured on my plan I prefer to introduce a thin washer on the pintle between the upper and lower halves of the hinge, to prevent rubbing of the opposite cylindrical*member of the hinge, should the door be hung out of line. Itis desirable in this hinge to have the hinge-pin or pintl enter either half 'of the hinge for about twothirds of its length, to secure steadiness and good working action, and to have holes in either half of the but cast or drilled perfect and parallel, that the pintle properly fit both halves, and as both edges are round and symmetrical, the hinge may be placed either side up. Invorder to make this hinge it either .a right or a left i hand door, the pin or pintle has but to be reversed from one boss or cylinder to the other when tting` the hinge into position.

Figure 1 shows the hingein perspective, closed or folded together, the pin or pintle P being in the half'A, and the door on half B; (the door, on being hung, being opened from the face or outside, makes this a righthand hinge.)

Figure 2 shows thehinge in perspective, also closed, with the pintle P in A, but on the opposite cylinder ofthe hinge; (the door still being hung to'B, makes this a left-hand hinge.)

Figure 3 shows the hinge open.

What I claim, anddesire to secure as my invention, is-

1. I claim this hinge in combination with a washer, for the purpose specified.

2. I claim a double roundedge hinge as speeified, in combination with a movable pin or pintle, whereby I am enablffl to obtain a right or a left-hand hinge movement from one-and the same hinge.

WM. HANCOCK.

Witnesses FRANK C. JOHNSON, JOHN JOHNSON. 

